Metallic singletree or doubletree



June 1, 1937. e. E. POWERS METALLIC SINGLETREE OR DOUBLETREE Filed May 12, 1936 Patented June 1, 1937 I p 2,082,508 'METALLIC SINGLETREE on DOUBLETREE George E. Powers, London, Ohio, assignor to Ernest Heil, London, Ohio Application May 12, 1936, Serial No. 79,301 1 Claim. (01. 278-93) This invention relates to improvements in metallic singletrees or doubletrees, and has for its outstanding object the provision of a singletree or doubletree of strong, light weight and efficient 5 design, constructed entirely of metal and provided with novel bracing and reenforcing means for enabling the singletree or doubletree to successfully Withstand; the strains and stresses of sustained hard usage without mechanical failure.

10 In my prior patent, 1,830,482 dated Nov. 3, 1931,

I have disclosed a metallic singletree or doubletree comprising a pipelike body having aligned apertures formed in the ends thereof through which are trained the ends of a pull-receiving l5 truss rod, the ends of the rod after passing through said openings, being bent to form eyes which are seated and terminated within the openings of said body disposed on the outer side thereof.

20 In accordance with the present invention, the

openings in the tubular body through which are trained the end portions of the pull-receiving truss rod, are of the same diameter, and after passing through these openings, the rod is bent 25 at its ends to form eyes, the outer terminating portions of such eyes being bent and disposed so that the same will enter the open ends of the pipe-like body, to which the terminating ends of said eyes are permanently secured, preferably by welding, a construction being thus produced of marked strength and simplicity as well as economy in manufacture over previous forms.

It is a further object of the invention to provide the truss rod intermediately of its length with a strengthening and reenforcing brace, which latter in its preferred form comprises a length of rod material bent intermediately upon itself to produce a circular eye which is welded to the apex region of the truss rod, the eye 40 member of the brace terminating in oppositely extending portions which at their outer ends are passed through openings formed in the tubular body and suitably secured to the latter, the provision of said brace serving to materially 45 strengthen the construction of the unit and to prevent bending or distortion of the truss rod. For a further understanding of the invention, reference is to be had to the following description and the accompanying drawing, wherein: 50 Fig. 1 is a perspective view of a singletree unit constructed in accordance with the present invention;

Fig. 2 is a top plan view thereof; Fig. 3 is a vertical transverse sectional view on 5 the plane indicated by the line IIIIII of Fig. 2;

Fig. 4 is an enlarged horizontal sectional view taken through the tubular body of the singletree and disclosing the manner of connecting the ends of the truss and brace rods therewith.

In the accompanying drawing, a singletree made in conformity with the present invention has been disclosed at I. It will be understood, however, that the construction here illustrated is equally applicable to the formation of doubletrees, or other spreading or multiple arrangements. However, since such arrangements are mere duplications of the construction disclosed in Fig. 1, the description of the invention will be accordingly confined to a single unit.

In this instance, the singletree comprises a suitable length of straight metallic pipe, as indicated at 2. Contiguous to its ends, the pipe is provided with a pair of registering openings 3 which are of substantially the same diameter. Passing through the openings 3 are the longi- 'tudinally extending end portions 4 of a pull-receiving truss-shaped rod 5. After passing through the openings 3, the portions 4 of the rod 5 are looped as at 6, and the ends 1 of said looped portions are extended to project into the open ends of the pipe or tubular body 2 and are suitably welded thereto as indicated at 8. This produces a strong, easily made and substantial construction for connecting the, ends of the pullreceiving rod with the pipe or tubular body 2, preventing the ends of the rod when in use from becoming out of shape and deforming the loops 6 or from becoming disconnected with the pipelike body 2. The loops 5 are adapted to receive hooks or links 9 for connecting harness with the singletree or, if the latter is used as a spreader,

to connect doubletrees therewith.

In addition to the efiicient and effective construction disclosed for connecting the ends of the rod 5 with the pipe 2, the said rod is further reenforced in its central or intermediate region by means of a metallic brace Hi. This brace lies in the same plane as the pipe 2 and the rod 5 and is formed from a suitable length of metallicrod material. The brace is bent upon itself, intermediately of its length, to produce a substantially circular eye H, which is securely welded as at l2 to the central or apex portion of the cross rod 5. After forming the eye H, the brace I0 is shaped to include oppositely and tangentially extending portions l3 which terminate in angularly bent longitudinally extending terminals I4. These terminals pass through registering openings 15 formed in the pipe 2 and are suitably united with the latter by heading the outer ends metals capable of offering high resistance to corrosion or the outer surfaces thereof may be treated, through painting or the application of other coating materials, to secure similar results. I

What is claimed is:

An all-metal singletree comprising an openended pipe-like body of substantially uniform diameter throughout its length, said body being provided with sets of transversely aligned apertures adjacent to the ends thereof, a substantially v-shaped truss rod arranged in the horizontal plane of said body and projecting in advance thereof, the ends of said rod being formed to produce substantially U-shaped loops, one leg of each of said loops being received within one of said sets of apertures and the opposite leg of said loop terminated and positioned within one of the open ends of said body, and a brace rod arranged in the plane of the truss rod, said brace rod being bent intermediately of its length to form an eye having secured connection with the apex portion of said truss rod, the oppositely extending end portions of said brace rod being connected with said body intermediately of the length of the latter.

GEORGE E. POWERS. 

